Back to History Current Version

COVID-19 Vaccine Hesitancy in Rural India

Last registered on March 15, 2022


Trial Information

General Information

COVID-19 Vaccine Hesitancy in Rural India
Initial registration date
March 15, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
March 15, 2022, 8:08 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.


Primary Investigator


Other Primary Investigator(s)

PI Affiliation
PI Affiliation
PI Affiliation
PI Affiliation

Additional Trial Information

In development
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
We intend to conduct a large in-person survey in rural India to understand the determinants of vaccine hesitancy amongst a primarily unvaccinated sample. Our study will be conducted in Uttar Pradesh and Bihar, with an exclusive focus on data collection from rural areas. Our survey will empirically estimate demand for the vaccine, the determinants of this demand or the lack thereof, and hurdles due to supply-side issues. We will also collect information about knowledge related to COVID-19 and COVID-19 vaccines, adherence to COVID-19 protective measures, media consumption and demographics to serve as covariates in our analysis. In addition to the survey, we also intend to test behaviourally informed communications interventions that we hypothesise could improve vaccine agency amongst our sample. Our sample size will be about 6000 respondents and roughly representative of the rural population of each state.
External Link(s)

Registration Citation

Barnhardt, Sharon et al. 2022. "COVID-19 Vaccine Hesitancy in Rural India." AEA RCT Registry. March 15.
Experimental Details


At the end of the survey, participants will watch short videos that target COVID-19 vaccine hesitancy, hesitancy concerning getting their children vaccinated for COVID-19 and mask-wearing behaviour.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Intention to get vaccinated, Main barriers to vaccination, and Problems faced during vaccination
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We plan to conduct the survey using the proportional sampling method (based on the 2011 Census) in 20 districts of Uttar Pradesh and 12 districts of Bihar. Within these districts, eight villages will be randomly selected for data collection. Each of these villages is sampled entirely, ensuring proportionate sampling. Participants are first screened on vaccination status. All unvaccinated participants will proceed to the survey, and 10% of participants with one dose and 10% of participants with two doses will complete the survey.
Experimental Design Details
Randomization Method
The recruitment of the participants for the survey does not include randomisation. All unvaccinated participants and 10% of participants with one dose and two vaccination doses pass the screening and complete the entire survey. For the Intervention videos, the participants are randomly assigned to one of 3 arms (vaccinated participants) or one of 7 arms (unvaccinated participants).
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
6000 individuals
Sample size: planned number of observations
6000 individuals
Sample size (or number of clusters) by treatment arms
680 per treatment arm
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We intend to recruit around 6,000 subjects for the study, which allows us to calculate sample estimates for vaccine hesitancy outcomes for the ~247 million rural population of UP and Bihar with a 99% confidence interval and margin of error of about 1.7%.

Institutional Review Boards (IRBs)

IRB Name
Ashoka Institutional Review Board (IRB)
IRB Approval Date
IRB Approval Number
Analysis Plan

Analysis Plan Documents


MD5: 76c823ff529bebba8f88c638fec82f60

SHA1: b730f4dec9a2abf2847d7a3b935436a9cb308a73

Uploaded At: March 15, 2022


Post Trial Information

Study Withdrawal

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information


Is the intervention completed?
Data Collection Complete
Data Publication

Data Publication

Is public data available?

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials